If the health code has not been used for a long time and the actual health status does not match, you can click the "Modify" button in the upper right corner of the health code to fill in the personal health status information again.
If citizens fill in two questions incorrectly when applying for a health code, that is, whether they are in a home isolation state and whether their current health status is abnormal, a yellow code will be generated. In this case, you can modify the error message. After the information is corrected, the yellow code will turn into a green code. The information can only be modified once a day. Please fill it in carefully to avoid making mistakes again.